Tube Sleeves -3 20pk

The Tube Sleeves -3 20pk from ALLSTAR PERFORMANCE is a precision hydraulic and pneumatic fitting component engineered for use in high-pressure fluid transfer applications. This 20-pack bundle addresses the needs of engine builders, race teams, and automotive technicians who require reliable tube connections in tight engine compartments and chassis designs. Tube sleeves serve as the compression fitting interface that secures AN-spec tubing to adapters and manifolds, making them essential consumables for custom cooling systems, fuel delivery, and brake line assemblies.

Each sleeve in this set is manufactured from steel with a zinc oxide finish, offering corrosion resistance in underhood environments while maintaining the dimensional consistency required for repeatable, leak-free connections. The 3 AN (3/16 inch tube) specification matches industry-standard aluminum or steel tubing found in performance cooling, fuel, and fluid systems. Zinc oxide plating provides a protective barrier against rust and oxidation without compromising the metal-to-metal seal that the compression fitting design depends upon. The compact 2.85 x 0.5 x 4 inch package dimensions reflect the small, standardized geometry of these sleeves, allowing technicians to stock multiple packs without consuming significant workspace or inventory footprint.

Users rebuilding or upgrading classic muscle cars, late-model performance platforms, and racing engines benefit most from buying tube sleeves in bulk, since multiple lines throughout a vehicle demand fresh sleeves during overhaul. The 20-pack format reduces per-unit cost and ensures spare inventory for field repairs or future projects. Installation requires no special tools—simply insert the sleeve into the AN adapter before threading the tubing ferrule and nut, creating a secure mechanical lock. Compatibility with any 3/16 inch AN tubing (aluminum or steel) and standard 3 AN compression fittings makes this set universally applicable across domestic and import performance builds.